Retractable changeable brush assembly



FIG. 1 is a bottom right perspective view of my design;

FIG. 2 is a right side elevational view of my design;

FIG. 3 is a left side elevational view of my design;

FIG. 4 is a bottom plan view of my design;

FIG. 5 is a front elevational view of my design;

FIG. 6 a front elevational view of my design;

FIG. 7 is a bottom right perspective view of my design in an extended position;

FIG. 8 is a bottom left perspective view of my design in an extended position; and,

FIG. 9 is front elevational view of my design.

The broken line illustration of mounting steps shown in FIG. 9 illustrate environmental structure and forms no part of the claimed design. 

CLAIM The ornamental design for a retractable changeable brush assembly, as shown and described. 